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ABBA achieved incredible success worldwide in the 1970s

4. ABBA achieved incredible success worldwide in the 1970s

ABBA released a host of successful songs in the 1970s, including S.O.S., Mamma Mia, Fernando and Dancing Queen. Around this time though, Fältskog was becoming increasingly concerned about how little time she was able to spend caring for her first child Elin Linda Ulvaeus.